If the input does not contain any logical page section signalling directives, the text being read is assumed to consist of a single logical page body.
The following options are available:
-b type
Specify the logical page body lines to be numbered. Recognized type arguments are:
a
Number all lines.
t
Number only non-empty lines.
n
No line numbering.
p expr
Number only those lines that contain the basic regular expression specified by expr.
The default type for logical page body lines is t.
-d delim
Specify the delimiter characters used to indicate the start of a logical page section in the input file. At most two characters may be specified; if only one character is specified, the first character is replaced and the second character remains unchanged. The default delim characters are "\:".
-f type
Specify the same as -b type except for logical page footer lines. The default type for logical page footer lines is n.
-h type
Specify the same as -b type except for logical page header lines. The default type for logical page header lines is n.
-i incr
Specify the increment value used to number logical page lines. The default incr value is 1.
-l num
If numbering of all lines is specified for the current logical section using the corresponding -b a, -f a or -h a option, specify the number of adjacent blank lines to be considered as one. For example, -l 2 results in only the second adjacent blank line being numbered. The default num value is 1.
-n format
Specify the line numbering output format. Recognized format arguments are:
ln
Left justified.
rn
Right justified, leading zeros suppressed.
rz
Right justified, leading zeros kept.
The default format is rn.
-p
Specify that line numbering should not be restarted at logical page delimiters.
-s sep
Specify the characters used in separating the line number and the corresponding text line. The default sep setting is a single tab character.
-v startnum
Specify the initial value used to number logical page lines; see also the description of the -p option. The default startnum value is 1.
-w width
Specify the number of characters to be occupied by the line number; in case the width is insufficient to hold the line number, it will be truncated to its width least significant digits. The default width is 6.
